Irregular triangle T(n,k) of Arnold numbers with n>=1 and 1<= abs(k) <= n.

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =2a(6) =0a(7) =2a(8) =3a(9) =3a(10) =4a(11) =4a(12) =0a(13) =4a(14) =8a(15) =11a(16) =11a(17) =14a(18) =16a(19) =16a(20) =0a(21) =16a(22) =32a(23) =46a(24) =57a(25) =57a(26) =68a(27) =76a(28) =80a(29) =80